Wilkins 450DA Double Check Detector Backflow Preventer, N-Pattern, 4" to 10", Lead-Free*

Designed for installation on potable water lines in fire sprinkler systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 450DA shall provide protection where a potential health hazard does not exist. For applications requiring vertical flow up and vertical flow down. Incorporates metered by-pass to detect leaks and unauthorized water use. NSF® Listed-Standard 61, Annex G* *Product contains weighted average lead content less than 0.25% for wetted surfaces.

规格

The Double Check Detector Backflow Preventer shall be ASSE® Listed 1048 and supplied with full port OS & Y gate valves. The main body and access cover shall be epoxy coated ductile iron (ASTM A 536 Grade 4), the seat ring and check valve shall be NORYL™, the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The checks shall be accessible for maintenance without removing the device from the line. The Double Check Detector Backflow Preventer shall be a ZURN WILKINS Model 450DA.

技术规格

唯一参考zurn-450da
产品系列Backflow Preventers
产品组Double Check Detector Assembly
类型对象（单个对象）
发布日期2025-09-02
版本号1

链接

产品网址https://www.zurn.com/products/water-control/backflow-preventers/450da
安装说明https://www.zurn.com/Media-Library/web_documents/pdfs/installation/IS450-450DA-8-pdf.pdf
指导视频https://www.youtube.com/user/OneZurn
技术说明https://files.zurn.com/spec-sheets/bf-450da.pdf

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设计国家/地区United States

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